tests/sitecustomize.py

dirstate: issue a developer warning on implicit write on wlock release

Our goal is to get rid of all these to clarify the writing pattern, so it is
time to warn about this (and later, forbid it).

import os

if os.environ.get('COVERAGE_PROCESS_START'):
    try:
        import coverage
        import uuid

        covpath = os.path.join(
            os.environ['COVERAGE_DIR'], 'cov.%s' % uuid.uuid1()
        )
        cov = coverage.coverage(data_file=covpath, auto_data=True)
        cov._warn_no_data = False
        cov._warn_unimported_source = False
        cov.start()
    except ImportError:
        pass